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What will the work cost?

A starting figure for the big home projects — an extension, a loft or garage conversion, a new kitchen or bathroom. Pick the job, the size and the finish, and we give you an indicative UK price range adjusted for your region, with the contingency you should hold back. A budget to plan around before you get quotes. Free, no sign-up.

The main UK home projects. Costs are typical all-in build prices.
The biggest swing in the price after size. Kitchens and bathrooms especially.
The new floor area you're adding. A typical single-storey rear extension is 15–25 m².
Labour rates vary a lot by region — London runs well above the average.
Money held back for the unexpected — old wiring, damp, a price rise. 10–15% is sensible; more for an older home.

A guide, not a quote. The ranges are typical 2025/26 UK all-in build costs for a standard project — including labour, materials and a normal finish, and inclusive of VAT — drawn from published industry averages. They exclude planning and building-control fees, a structural engineer or architect, party-wall agreements, and any groundworks or drainage surprises. Every job is different: the only real number is a written quote from a vetted builder, and you should get at least three. Nothing you type leaves your browser.

How to read it

A budget to plan around, not a price.

Size, then finish, then region. For an extension or conversion the floor area sets the bulk of the cost; the finish (basic, standard, premium) swings it widely; and where you are in the UK moves it again — London labour runs roughly 30% above the national average, the North a little below. We apply all three.

Kitchens and bathrooms are priced differently. They're driven by the fit-out — units, appliances, tiling, sanitaryware — far more than floor area, so we use realistic small / medium / large brackets rather than a per-m² rate.

Always hold a contingency. Renovations uncover the unexpected — old wiring, damp, a rotten joist, a price rise mid-job. Builders and surveyors recommend keeping 10–15% back (more on an older or unmodernised home). We add it on top so your budget is the all-in figure, not the optimistic one.

What's not in here. Planning permission and building-control fees, an architect or structural engineer, a party-wall surveyor, and major drainage or groundworks are all extra. On a bigger project they add up — budget for them separately.

Get three quotes. The range is a sanity check, so you know whether a quote is in the right ballpark or wildly off. The real figure comes from vetted builders pricing your actual job — use a trade body (TrustMark, Checkatrade, FMB) and check references.

Keep the whole project in one place.

Stead holds your quotes, your budget, the trades you used and the dates the work was done — so the renovation has a record, and the next project starts with the figures already to hand.

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